Algebraic deformations arising from orbifolds with discrete torsion Academic Article

abstract

• We develop methods for computing Hochschild cohomology groups and deformations of crossed product rings. We use these methods to find deformations of a ring associated to a particular orbifold with discrete torsion, and give a presentation of the center of the resulting deformed ring. This connects with earlier calculations by Vafa and Witten of chiral numbers and deformations of a similar orbifold. 2003 Elsevier B.V. All rights reserved.

authors

• Witherspoon, Sarah

published proceedings

• Journal of Pure and Applied Algebra

author list (cited authors)

• Cldraru, A., Giaquinto, A., & Witherspoon, S.

citation count

• 18

complete list of authors

• Căldăraru, Andrei||Giaquinto, Anthony||Witherspoon, Sarah

publication date

• January 2004

publisher

• Elsevier  Publisher

published in

• Journal of Pure and Applied Algebra  Journal

Digital Object Identifier (DOI)

• 10.1016/j.jpaa.2003.10.004

start page

• 51

end page

• 70

volume

• 187

issue

• 1-3

URL

• http://dx.doi.org/10.1016/j.jpaa.2003.10.004